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instrument
1 年
测定原理: 2小时消解法(实验室型)
采用重铬酸钾法(K 2 CrO 7 )测定化学需氧量(COD),预制COD试剂符合Standard method 5220D方法和US EPA 410.4标准,加热消解器,采用耐热耐腐蚀材质,可同时消解24个样品,具有过热保护功能,保证使用安全稳定。 SMD微电脑控制技术,高质量窄波段滤光器,具有温度 ...
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